diff --git a/README.md b/README.md
index dc3e335..fa05eb8 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,6 @@ src/art.rs         cover download (curl) and the palette file
 src/parse.rs       pure text parsing with unit tests, no amane dependency
 island-eq          saved equalizer curves (a snapshot of ~/.config/amane/island-eq)
 tools/             remote test driver and fake MPRIS players, see AGENTS.md
-src.before-test/   the original hello-world config, kept as a backup
 ```
 
 ## Requirements
diff --git a/src.before-test/main.rs b/src.before-test/main.rs
deleted file mode 100644
index b0628ee..0000000
--- a/src.before-test/main.rs
+++ /dev/null
@@ -1,23 +0,0 @@
-use amane::*;
-
-fn main() {
-    App::new().window(view).run();
-}
-
-fn view() -> LayerWindow {
-    LayerWindow::new()
-        .width(Full)
-        .height(20.0)
-        .anchor_vertical(Vertical::Top)
-        .layer(Layer::Top)
-        .child(
-            Rectangle::new()
-                .width(Parent)
-                .height(Parent)
-                .fill(Color::BLUE)
-                .align_child(End, Center)
-                .child(
-                    Text::new("hello world").size(20.0).color(Color::WHITE)
-                ),
-        )
-}